/Engine/Source/Runtime/Core/Public/Algo/IntroSort.h
Sort a range of elements by a projection using a user-defined predicate class. The sort is unstable.
namespace Algo { template<typename RangeType, typename ProjectionType, typename PredicateType> void Algo::IntroSortBy ( RangeType && Range, ProjectionType Projection, PredicateType Predicate ) }